:root{--bg: #f5f6f8;--panel: #fff;--border: #e5e7eb;--text: #1f2937;--muted: #6b7280;--primary: #2563eb;--primary-hover: #1d4ed8;--danger: #dc2626;--ok: #059669;--warn: #d97706;--radius: 8px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,Microsoft YaHei,sans-serif;font-size:14px;color:var(--text);background:var(--bg)}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer;border:1px solid var(--border);background:#fff;color:var(--text);padding:6px 14px;border-radius:6px}button:hover{background:#f3f4f6}button:disabled{opacity:.5;cursor:default}button.primary{background:var(--primary);border-color:var(--primary);color:#fff}button.primary:hover{background:var(--primary-hover)}button.danger{color:var(--danger);border-color:#fca5a5}button.small{padding:3px 10px;font-size:12px}input,textarea,select{font:inherit;border:1px solid var(--border);border-radius:6px;padding:6px 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